Threadless bolt



Dec. 18,1923.. www@ P. BALLAZ THREADLES Sv BOLT Filed March 14. 1925 ze f" mi fl V PETER BALLAZ, 0F WEST NEW YORK, NEW JERSEY.

rrrnnennnss BOLT.

Application filed March 14, 1923. Seral'No. $24,972.

To all t0/tom t may concern:

Be it know that I, PETER BALLA, a citizen of Czechoslovakia, residing at lest New York, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Threadless Bolts, of which the following is a specification.

This invention relates to a means for holding any desired parts together, and it has for an object to provide a novel and improved device of this kind which may be readily applied and which obviates the disadvantage of tendency to loosen such as is common in nut and bolt locking devices.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

Fig. 1 of the drawings is a perspective view showing my improved device in use holding two plates together.

Fig. 2 is an enlarged perspective view of the device removed.

Figs. 3 and 1 are detail perspective views respectively of the releasing and adjusting tools.

Fig. 5 is a fragmentary longitudinal seetional view this view being taken along the line 5-5 of Fig. 6.

Fig. 6. is a transverse sectional view taken on the line 6-6 of Fig. 5.

Fig. 7 is a similar view to Fig. 5 but showing the adjusting tools in position on the bolt.

As here embodied my improved device comprises a bolt 10 of circular cross section and having an integral head 11 at one end adapted to engage one of the elements to be secured together, and which carries a series of spring latches 12 near its other end which are adapted to engage the other of the said elements. These latches 12 are here shown as pivoted as at 12 to the separate end element 14, and being urged outwardly b v flat springs such as 15, outward movement being limited by tips 12a on the latches engaging shoulders 10 on the bolt. This end part is formed with an axial socket 16 which tits freely over a diminished pin-like projection 17 from the main body of the bolt. Extending forwardly from the main body of the bolt 10, in longitudinal registry with the pin 17, is a cylindrical member 18 which is suitably slotted from its forward end rearwardly to receive the latches 12.

Extending from the part 1e toward the main body of the bolt is a sleeve-like pro` jection or extension 19 which 'lits freely over the pin 17 and is formed with a series of longitudinally spaced and circumferentiallyT extending notches 2O adapted to be engaged by the inturned forward ends of a series of levers 21 pivoted between their ends in the extension 18 as indicated at Q2, whereby the part 14 is locked to the main body of' the bolt. The said ends of the levers-21 are held in engagement with the notches by means of springs such as 23 bearing outwardly on their other ends. Formed in the extension are apertures such as 24 which register with the last mentioned ends of the levers.

In the use of my improved device, as will be apparent, the parts, such as the plates 25, to be held together will be provided with apertures of a size to snugly receive the bolt 10, and when the latter is being inserted in the said apertures the latches 12 will be swung inward by engagement with the walls of the apertures, springing out behind the said parts to hold them together.

To remove the bolt 1 provide the implements shown in Figs. 3 and l, that shown in 3 comprising a sleeve 30 which is )laced over the part shown in Fig. Ll and forces the latches 12 inward, the part 14 being of less diameter than the main body ot' the bolt so as to keep the sleeve within the confines of the latter and permit of its eX- tending into the apertures in the parts being unlocked. rl`he sleeve 3() may have a pair of handles such as 31 thereon, and may cai-rjv a hook 32 for a purpose to be presently set forth.

If it is desired to vary the distance between the latches 12 and the head 11 l make use ot' the sleeve 210 in conjunction with the implement shown in Fig. 4 :ind which coinprises a shank having on one end a i ies of outwardly flaring spring lingers 36 having inturned ends 37. This implement is placed on the end of the device with the lingers 36 extending between the latches 12, the sleeve 3() being lirst slipped on the shank 3.5 as indiated in dotted lines. The finger ends 37 are brought into registry with the apertures 24 in the extension 18, and when the sleeve 30 is moved over the fingers 36 these ends are projected inward through said apertures and bear on the levers 21 as in,-

lll() dicated in Fig. 7 and disengage the latter from the notches 2O in the sleeve extension 19, thereby freeing the part 14, which can be moved longitudinally to such new position as may be desired, the latches l2 being readily grasped by hand for suoli longitudinal adjustment. The shank 35 may have formed on the end thereof opposite that from which the fingers 35 project, the head 39 on which is secured a handle 40, While it may be also provided with an eye 32 to receive the hook 32 and thereby retain the sleeve in position on the shank. Vhon the device is being unlocked the fingers 36 may be placed over the latches 12, and When the sleeve is moved 'forward the ends 37 of the lingers Will move the latches inward.

While I have illustrated and described a preferred embodiment oi' my invention, it is to be understood, that I do not limit myself to the precise construction herein shown, and that various changes and modifications might be madetherein Without departing from the spirit and scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent of the United States is as follows:

l. A device oit the class described coniprising a bolt consisting of a main body having a head at one end, a longitudinally adjustable part on the other end of said main body, radially adjustable latches carried by said part, a hinged locking Velement carried by said main body Within the contines thereor', said part presenting a` series oic longitudinallyspaced elements adapted to be rcleasably engaged by said locking element to hold the said part locked to the said main body. 1

2. A device'oi' the class described comprising arbolt consisting of a main body having a head at one end, a longitudinally adjustable part onthe other end of said main body, and spring latches carried by said part, a number of levers carried by said main body within the confines thereof, said part having longitudinally spaced notches engaged by said levers to hold the said part locked to the main body.

3. A device of the class described coinprising a bolt consisting of a main bedyhaving a head at one end, a longitudinally adjustable part on the other end of said main body, and spring latches carried by said part, a number oi levers carried by said main body Wit-hin the confines thereof, said part having longitudinally spaced notches engaged by said levers to hold the said part locked to the main body, and springs bearing on said levers to hold them in engagement with the said notches.

In testimony whereof I have signature.

PETER BALLA.

aiiifzed my 

